upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
83 lines
2.1 KiB
83 lines
2.1 KiB
/*
|
|
* Freescale i.MX27 RTC Driver
|
|
*
|
|
* Copyright (C) 2012 Philippe Reynes <tremyfr@yahoo.fr>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <rtc.h>
|
|
#include <asm/io.h>
|
|
#include <asm/arch/imx-regs.h>
|
|
|
|
#define HOUR_SHIFT 8
|
|
#define HOUR_MASK 0x1f
|
|
#define MIN_SHIFT 0
|
|
#define MIN_MASK 0x3f
|
|
|
|
int rtc_get(struct rtc_time *time)
|
|
{
|
|
struct rtc_regs *rtc_regs = (struct rtc_regs *)IMX_RTC_BASE;
|
|
uint32_t day, hour, min, sec;
|
|
|
|
day = readl(&rtc_regs->dayr);
|
|
hour = readl(&rtc_regs->hourmin);
|
|
sec = readl(&rtc_regs->seconds);
|
|
|
|
min = (hour >> MIN_SHIFT) & MIN_MASK;
|
|
hour = (hour >> HOUR_SHIFT) & HOUR_MASK;
|
|
|
|
sec += min * 60 + hour * 3600 + day * 24 * 3600;
|
|
|
|
to_tm(sec, time);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int rtc_set(struct rtc_time *time)
|
|
{
|
|
struct rtc_regs *rtc_regs = (struct rtc_regs *)IMX_RTC_BASE;
|
|
uint32_t day, hour, min, sec;
|
|
|
|
sec = mktime(time->tm_year, time->tm_mon, time->tm_mday,
|
|
time->tm_hour, time->tm_min, time->tm_sec);
|
|
|
|
day = sec / (24 * 3600);
|
|
sec = sec % (24 * 3600);
|
|
hour = sec / 3600;
|
|
sec = sec % 3600;
|
|
min = sec / 60;
|
|
sec = sec % 60;
|
|
|
|
hour = (hour & HOUR_MASK) << HOUR_SHIFT;
|
|
hour |= (min & MIN_MASK) << MIN_SHIFT;
|
|
|
|
writel(day, &rtc_regs->dayr);
|
|
writel(hour, &rtc_regs->hourmin);
|
|
writel(sec, &rtc_regs->seconds);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void rtc_reset(void)
|
|
{
|
|
struct rtc_regs *rtc_regs = (struct rtc_regs *)IMX_RTC_BASE;
|
|
|
|
writel(0, &rtc_regs->dayr);
|
|
writel(0, &rtc_regs->hourmin);
|
|
writel(0, &rtc_regs->seconds);
|
|
}
|
|
|